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12152085 = 3511471567
BaseRepresentation
bin101110010110…
…110100010101
3211212101112020
4232112310111
511102331320
61112243353
7205201551
oct56266425
924771466
1012152085
116950050
1240a0559
1326962aa
141884861
151100940
hexb96d15

12152085 has 32 divisors (see below), whose sum is σ = 21676032. Its totient is φ = 5762880.

The previous prime is 12152081. The next prime is 12152099. The reversal of 12152085 is 58025121.

It is not a de Polignac number, because 12152085 - 22 = 12152081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6972 + ... + 8538.

It is an arithmetic number, because the mean of its divisors is an integer number (677376).

Almost surely, 212152085 is an apocalyptic number.

12152085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12152085 is a deficient number, since it is larger than the sum of its proper divisors (9523947).

12152085 is a wasteful number, since it uses less digits than its factorization.

12152085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 12152085 is about 3485.9840791375. The cubic root of 12152085 is about 229.9059792142.

The spelling of 12152085 in words is "twelve million, one hundred fifty-two thousand, eighty-five".

Divisors: 1 3 5 11 15 33 47 55 141 165 235 517 705 1551 1567 2585 4701 7755 7835 17237 23505 51711 73649 86185 220947 258555 368245 810139 1104735 2430417 4050695 12152085